磁極性 的英文怎麼說

中文拼音 [cíjíxìng]
磁極性 英文
magnetic polarity
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. For starters, the core ' s motion could help explain why magnetic north and south periodically wander or reverse over earth ' s history

    就像起動器一樣，地核的運動有助於解釋南北磁極周期性變換或歷史上地球磁極的翻轉原因。
  2. The two sunspots of a pair have different polarities, one would be a magnetic north and the other is a magnetic south. thus, we believe that there are magnetic field lines joining the two sunspots of a pair. the strong magnetic field locks the gas of the photosphere in places and inhibits the hotter gas below to rise at the sunspots

    黑子經常成雙成對出現，每對皆由極性相反的黑子組成，若一個為磁北，另一個必為磁南，由此我們估計每對黑子皆由磁力線所連系，強大的磁場牽制著光球層上的氣體，並阻止了下層較熾熱的氣體上升至黑子范圍，結果黑子比太陽表面其他地方溫度較低。
  3. Several key factors, ultrasonic dispersion, water / organic solvent mixing medium, surfactant, were used and adjusted in order to obtain composite particles with better monodispersity and less organic impurities

    在有機介質加入量較小的情況下，極性較小的丙酮更有利於合成單分散性好、粒徑小的磁性復合微球。
  4. When the sun's rotation sweeps this warped surface across the earth, we detect sudden changes in the polarity of the magnetic field.

    當太陽的自轉使這個波浪形間隔面掃過地球時，我們就會探測到磁場極性的突然反轉。
  5. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  6. The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed

    本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。
  7. Deltan heliographers observe an irregularity in the magnetic cycle of the star delta. the shift of the stars magnetic polarity which usually occurs every 12 years has occurred 1 year early

    德爾塔日光儀觀察到星球德爾塔的磁極周期不規則性變化；該星球每12年移動一次的磁極變化剛剛在一年前發生過。
  8. For an actual planetwide polarity reversal to occur, such a reversed flux patch would grow and engulf the entire polar region ; at the same time, a similar change in overall regional magnetic polarity would take place near the other geographic pole

    如果整個行星的磁極要真的反轉，反向通量斑塊需擴大到涵蓋整個極區；同時，另一個地理極點附近也會發生類似的區域極性全面變化。
  9. Magnetic field polarity reversals are magnetic poleshifts

    磁場極性逆轉就是磁極轉換。
  10. Only on rare occasions do the thermodynamics work ; the fluid motions and the magnetic field all evolve in a compatible manner, so the new dipole polarity can diffuse in and establish a reversed magnetic field

    只有在很少的情況下熱力學才發揮作用，此時流體運動和磁場都會以相互訪調的方式演化，這樣新的偶極性就會散開並建立一個倒轉的磁場。
  11. But rather than extinguishing the magnetic field completely, the reversed flux patches created a weak field with a complex mix of polarities during the transition

    但在過渡期間，這些反向通量斑塊並不會完全消除磁場，而是形成一個綜合了復雜極性的微弱磁場。
  12. This paper develops a brain tumors heating curing instrument, which is based on the endogenetic field. it works by heating the ion and polity elements in the tumors organization, making the molecule twist and fracture. in that way, the temperature in the brain tumors is 3 ~ 7 c higher than the normal organization, and kills the brain tumor

    本文研製了一種基於內生場的腦腫瘤射頻熱療儀，通過內生場加溫促使腫瘤組織的離子和極性分子在電磁場中發生分子扭動、摩擦，產生熱滯留，使得腫瘤組織的溫度高於周圍正常組織的3 ~ 7 ，從而燒死腦腫瘤細胞，達到安全治愈腫瘤的目的。
  13. In this thesis, the mathematical model of transitional process is built up during salient - pole synchronous motors ( asynchronous starting based on the state equations under d - q frame, simulation model about asynchronous starting using matlab software is set up. it proves the novel exciting winding control way through analyzing and studying the simulation curves, and provides the best exciting in towards polarity way using " stator - electricity " during salient - pole synchronous motors ( asynchronous starting through analyzing the fault of traditional way to exciting

    通過分析d q軸系下的凸極同步電動機狀態方程，建立了凸極同步電動機異步起動過渡過程的數學模型。利用matlab模擬軟體建立凸極同步電動機異步起動模擬模型，通過模擬曲線分析、研究，證明本文提出的新型勵磁繞組控制方法的正確性，並通過分析傳統投勵方法的缺陷，提出了"定子電量法"實現凸極同步電動機最佳順極性投勵的方法。
  14. Characterization of an external - magnetic field mid with polymer anode and a self - magnetic field mid with graphite anode operated in unipolar and bipolar pulse mode, respectively, has been performed. it is found that the characteristics of hipib are mainly depended on two crucial factors, i. e. the properties of insulated magnetic field and anode plasma

    通過聚合物陽極的單極脈沖模式外磁絕緣離子二極體和石墨陽極的雙極脈沖模式自磁絕緣離子二極體工作特性的實驗研究發現，影響hipib產生特性的主要因素是離子二極體的絕緣磁場性質和陽極等離子體特性。
  15. In this paper, the bias - magnetic of ppfc and the parameters effect on the bias - magnetic are all studied. firstly, the bias - magnetic principle of ambipolar converter and some basic relations are analysed under two different conditions ( different von and different ton )

    首先在導致偏磁的兩種情況下（管壓降不同和導通時間不同）下，從理論上分析了雙極性變換器變壓器偏磁原理及基本關系。
  16. Electromagnetic modeling of complex conductor object with arbitrary composition based on fast multipole method

    組合導體目標電磁特性的快速多極演算法計算
  17. The magnetizer we made can be used for different magnetic material to be magnetized. the 4 - 8 magnetic pole can be magnetized at same time using various design of magnetizer head, and the parameters of br, hc and bh can reach the ideal value. copyright2004 all rights reserved

    本公司製造的充磁機，可用於各種不同磁性材料原形磁體的充磁，採用不同設計的充磁頭可實現4 - 8個磁極的充磁，使充磁體的剩磁矯頑力磁能積等磁性參數達到理想狀態。
  18. The substitution of a - site cation ln can induce significant effect on the magnetization and polarization, nevertheless b - site cation can induce more effect on the polarization of perovskite structure. as a result, the doping of titanate which had typical high dielectric behavior would have significant effect on the research and development of novel multiferroelectric magnetoelectric material

    A位離子ln的取代可以對材料的磁化性能和極化性能產生影響，然而由於b位離子對鈣鈦礦結構的極化可能產生更大的作用，因而具有典型高介電行為的含ti鈣鈦礦結構的引入將可能對新型復鐵電性的磁電子材料的開發研究產生很大的影響並具有非常重要的科學意義。
  19. But we do have convincing information obtained from magnetized mineral grains in rocks that tells us that geomagnetic polarity reversals have occurred a great many times in the history of the earth

    但是我們確實從巖石破磁化的礦物顆粒中獲得了令人信服的信息，這個信息告訴我們在地球史上曾發生了很多次地磁極性倒轉。
  20. Research on the switch directions control of the variable pole based on the singlechip

    基於單片機的變磁極性換向控制研究
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